Pavement and brick for use therein.



E. E. TROWBRIDGE. PAVEMENT AND BRICK FOR USE THEREIN.

APPLICATION FILED FEB. 12. ms.

Patented Mar. 19, 1918..

EMORY E. TROWBRIDGE, or KANSAS CITY, MISSOURI.

PAVEMENT AND :e'nxc'k FOR use THEREIN.

Specification of Letters Patent.

Patented Mar. 19,1918.

Applicationfiled lfebruary 12, 19-16. Seria1No.-77,933.

T 0 all whomit may concern:

Be it known that I, EMORY E. TROWBRIDGE,

a citizen of the United States, residing in the city ofKansas City, county of J ackson,

and State of Missourh have invented certain new and useful Improvementsin Pavements and Bricks for Use There1n,-'of which the following is a specification.

T his inventlon relates toimprovements 1n pavements and bI'lCkS for use there n and more particularly to the verticalfiber brick. V In bricks of this character it is advantageous that the vertical face of the brick be provided with grouting spaces to receive i1 kbinder such as an asphalt filler or the Among the salient objects of the invention are to providea brick equipped with the desired or requisite number of grouting spaces on its vertical faces, which grouting spaces are so arranged as to obtain a maximum binding surface for the filler or grout andwhich grooves are soarranged that the sections of asphalt filler or the like when the bricks will be laid in a pavement will be uniformly spaced; to provide a brick in which these grooves are so disposed on the vertical faces of the brick and if desired on the vertical ends whereby the grouting spaces will be in proper position when the bricks are laid in a pavement regardless of the way in which the bricks are laid, the same result will be obtained regardless which horizontal face of the brick is uppermost and regardless of the fact that the brick may be turned end for end. The.

above arrangement very mater-ally facilitates the laying of the bricks in pavements for the reason that no attention need be paid to which horizontal face of the brick is uppermost or which vertical face of the brick lies against the previously laid layer or row. Furthermore, the construction of the brick itself is such that in burning the bricks in a kiln many more horizontally extending heat passages are provided. The process of making these bricks is in general described in my issued Patent No. 1,154,741, of September 28,1915, although the present brick is so constructed that when the green bricks are piled in the kiln they will be more effectively burned, in fact, the method of burning these bricks is an improvement over that set forth in said patent and will be apparent to those skilledin theart. It will thus be seen that the present invention of combustion are readily obtained. erably the vertical grooves are roughened hereinafter described and drawings.

not only "provides a brickwhich can be more effectively burned in the kiln but very materially facilitatesthe laying of the pavement and further provides an. increased number ofgrouting spaces for the binder o-r filler. By reference to the drawing hereinafter referred to andmore particularly to Fig. 2 and comparing the same with Fig. 3 of the aforesaid issued patent it will be seen that the increased passages for the. ases refas shown in the drawing in order that the binder will more effectively unite with the brick itself. As a still further object of the invention the grooves are so arranged that when the bricks of adjacent rows are staggered as is required in the laying of pavements the grooves on the opposite meeting vertical faces will be staggered or alternately arranged as shown clearly in Fig. 2. As a. subsidiary object of the invention the ends of the vertical faces of the bricks are provided with what may be called half grooves which cooperate with the corresponding half groove of adjacent bricks. Thisis also clearly shown in Fig. 20f the drawings. 7

I am, of course, aware that heretofore vertical fiber bricks have been made with grooves and sometimes with grooves and projecting ribs but I am not aware that any brick has been made embodying the advantages of the present invention or that any pavement has been laid-in a manner shown in the In the drawing:

' Figure l is a perspective view of my improved brick.

Fig. 2 is a similar view showing the manner of forming the pavement with such bricks.

Referring to the drawing, 1 designates as a whole the brick having vertical fibers 2, 2 and being substantially rectangular in shape as shown in the drawing.v Each vertical face 3 of the brick is provided with two centrally disposed and equi-spaced grooves 4 which serve as grouting spaces and end semi-grooves 5. It is to be noted that the grooves 4 on each vertical face are not only spaced equi-distant from each other and equi-distant from the ends of the brick but that they are directly opposite the corresponding grooves on the opposed vertical faces. Preferably the vertical ends of the brick are provided with vertical grooves 6 as shown. These grooves are spaced mid- Way between the vertical faces of the brick.

As is Well known uniformity of burning I of brick throughout its entirety is highly only better in itself in so far as its quality" is concerned but makes a better pavement 1n that the bricks can be more efiectively bound together and furthermore can be much more economically laid. In Fig. 2 I have shown portions of three rows of a pavement A, B and C respectively. It will be noted that the bricks of row B are staggered with reference to the other two rows so as to break joints transversely of the pavement itself. This is required in the laying of pavement. Now it will also benoted that the grooves or grouting spaces 4 on the inner face'of row A are alternately disposed relative to the groutingspaces 4: of row B, the result being that a maximum surface of the vertical faces of the bricks come in contact with the filler or binder. This, of course, is highly desirable. It will also be noted that the semi-grooves 5 of the adjacent ends of the bricks in each row will form a single grouting space. Furthermore, the grooves 6 on the vertical ends of the brick register to form the grouting spaces as clearly seen in Fig. 2. Now it will be apparent that the foregoing arrangement of the pavement takes place regardless of which horizontal face of the brick is uppermost and the same arrangement is true if any of the bricks be turned end for end. As is well known these bricks are laid very rapidly, frequently from a jumbled pile of bricks in forming the pavement. The cost of laying the pavement is very materially reduced if the bricks can be laid without the necessity of having to arrange the proper face of the brick in the proper position, as for example, would be the case were the brick shown in my issued patent used. This tractor bidding for a particular job to make a much lower bid and thus secure the award. In addition the pavement itself when completed is as heretofore stated a better pavement than that formed by any of the bricks of the prior art.

The invention is not limited to the details of construction shown except as set forth in the appended claim.

I claim as my invention:

. A pavement comprising a plurality of rows of elongated bricks, each having extending from top to bottom on its elongated vertical faces a plurality of relatively wide and shallow vertical grooves of less width than the wall faces between the grooves, the bricks of adjacent rows'being laid with the grooves in the face of one row of bricks centrally disposed of and opposite to the wall faces between the grooves of the adjacent row of bricks, and with portions of said faces on each side of each groove of one row of bricks in contact with corresponding portions of the faces of the adjacent row and cementitious material filling said grooves and cementing the juxtaposed faces of the bricks together at a plurality of isolated points relative to the face of each brick.

EMORY E. TROWBRIDGE.

Goptea o2 this patent may be obtainedcfor five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0."

is of such importance as to permit a con- 

